C#色彩映射例子，如图所示的运行效果中，可把载入的BMP位图映射到右边显示，并去掉了背景，也就是将黑色替换成白色,以达到驱除的效果，程序运行时将绘制原始图像，绘制已经抠除背景色的新图像，有需要色彩重映射的朋友，这是个不错的例子-C# color mapping example, as shown in operating results, may put the loaded bitmap BMP map to the right to display and remove the background, which is to replace the black into white, get rid of in order to achieve the effect, the program runs the draw the original image, drawing has cut out the background color of the new image, there is a need color remapping friends, this is a good example